﻿<p>The <em>IfcTransitionCode</em> indicated the continuity between consecutive segments of a curve or surface.</p>
<blockquote class="example">EXAMPLE&nbsp; In ContSameGradient the tangent vectors of successive segments will have the
same direction, but may have different magnitude.</blockquote>
<p>Figure 2 illustrates transition types</p>
<blockquote class="note">NOTE&nbsp; The figure is quoted from ISO 10303-42.</blockquote>
<table summary="illustration">
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<td><img src="../../../figures/ifctransitioncode.gif" alt="transition code" width="457" height="247" border="0"></td>
</tr>
<tr>
<td>
<p class="figure">Figure 2 &mdash; Transition code</p>
</td>
</tr>
</table>
<blockquote class="extDef">NOTE&nbsp; Definition according to ISO/CD 10303-42:1992<br>
This type conveys the continuity properties of a composite curve or surface. The continuity referred to is geometric,
not parametric continuity.</blockquote>
<blockquote class="note">NOTE&nbsp; Type adapted from <strong>transition_code</strong> defined in ISO
10303-42.</blockquote>
<blockquote class="history">HISTORY&nbsp; New Type in IFC1.0</blockquote>